query ExampleQuery {
  topProducts(first: $undefinedVariable, filter: {offset: $offset, keywords: ["a", $keyword]}) {
    name
  }
}

input Filter {
  keywords: [String!]
  offset: Int
  limit: Int
}

type Query {
  topProducts(first: Int, filter: Filter): Product
}

type Product {
  name: String
}